<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        div{
            font-size: 36px;
        }
        .div1{
            font-family:"Times New Roman", Times, serif;
        }
        .div2{
            font-family:Arial, Helvetica, sans-serif;
        }
        .div3{
            font-family:"Courier New", Courier, monospace;
        }
    </style>
</head>
<body>
<div class="div1">serif:qeqwqwewqewqewe</div>
<div class="div2">sans-serif:qeqwqwewqewqewe</div>
<div class="div3">monospace:qeqwqwewqewqewe</div>
</body>
</html>